Late Friday night, NBC decided to shelve episodes of Parenthood and L&O:SVU in late October and replace them with more Prime Suspect encores in the last hour of prime.
Unless your RD has updated your inventory and estimates today, your 4th Quarter Prime and Specials avails are out of date.
How soon will your station be able to address the preemptions of spots you've already sold? RDRx clients can begin first thing Monday morning, as their MediaOffice inventory and estimates have already been published to their servers.
Added 3 days later: First Web notification of this change.